I increased urinary frequency, breast tenderness, marked fatigue, mood changes, cravings,, mild cramping, low grade headache am i pregnant?

If you miss period: All of those signs are not important things - your period is. If you do miss it this month - do a test or see a doctor. Ask for clear info while you're there. Unprotected intercourse at or near ovulation by a fertile man and woman brings a good chance of conceiving. Soft signs like you name aren't good indicators of pregnancy but may be reason for exam. Again - if you skip a period - have a test.